Involved in ciliogenesis. Regulates cilia length through its interaction with MAPKAP1/SIN1 but independently of mTORC2 complex. Modulates mTORC2 complex assembly and function, possibly enhances AKT1 phosphorylation. Does not seem to modulate assembly and function of mTORC1 complex. Interacts with BBS1, BBS2, BBS4, BBS5, BBS6, BBS7 and TTC8/BBS8. Interacts with MAPKAP1/SIN1 isoform 1 and RICTOR (By similarity). It localizes near centrosomes and basal bodies. Expressed in the retina, pericardium and limb epithelium.