Essential component of the TORC2 complex, which plays a critical role in akt1 'Ser-473' phosphorylation, and may modulate the phosphorylation of pkca and regulate actin cytoskeleton organization. May interact with a MAP kinase. May act on Ras-regulated pathways (By similarity). Part of the target of rapamycin 2 complex (TORC2). Belongs to the SIN1 family.