It seems clear that yes, Frame dragging does contribute to disk formation around supermassive black holes and active galactic nuclei. Here are some references:
THE ASTROPHYSICAL JOURNAL, 475:57 64, 1997 January 20
Line Emission from an Accretion Disk around a Rotating Black Hole: Toward a Measurement of Frame Dragging
BENJAMIN C. BROMLEY, 1 KAIYOU CHEN, AND WARNER A. MILLER
Theoretical Astrophysics Group, T-6, MS B288, Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545
Received 1995 December 15; accepted 1996 August 8
Excerpt from the “Discussion” section:
“For these reasons, we feel justified in choosing diagnostics of a line-emitting accretion disk as a probe for frame-dragging effects in the nuclei of active galaxies. As noted before (Laor 1991), perhaps the best hope of detecting the frame-dragging effect is to spot a stable Keplerian accretion disk at radii below the limit of 6Rg imposed in a Schwarzschild metric.”
(Note: This paper was written and published before Gravity Probe B positive results were announced.)
http://iopscience.iop.org/0004-637X/475/1/57/fulltext/33793.text.html
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See section five:
“Frame-dragging: occurs generally around rotating objects. It's just that the exact
Kerr form only applies to black holes.”
www.astro.umd.edu/~miller/teaching/astr688m/lecture11.pdf
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Disc Accretion in Active Galactic Nuclei
Andrew King
Theoretical Astrophysics Group, University of Leicester, Leicester LE1 7RH, UK
www.vlti.org/events/assets/3/documents/king.pdf
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Four other possiblilities:
arXiv:1208.0728
Title: The effect of frame dragging on the iron K alpha line in X-ray binaries
Authors:Adam Ingram, Chris Done
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arXiv:0705.1796
Title: Iron line profiles and self-shadowing from relativistic thick accretion discs
Authors:Sheng-Miao Wu, Ting-Gui Wang
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arXiv:astro-ph/0401345
Title: Gravitating discs around black holes
Authors:V. Karas, J.-M. Hure, O. Semerak
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arXiv:astro-ph/9901223
Title: Radiation force on relativistic jets in active galactic nuclei
Authors:Qinghuan Luo, R. J. Protheroe