Required for dynein-dynactin complex and NUMA1 recruitment at the mitotic cell cortex during anaphase (PubMed:23870127). Interacts with FCGR1A (PubMed:18023480). Interacts with TRPC4 (PubMed:16254212). Interacts (via CTD domain) with FKBP2 (By similarity). Interacts with NUMA1; this interaction is negatively regulated by CDK1 during metaphase and promotes anaphase-specific localization of NUMA1 in symmetrically dividing cells (PubMed:23870127). Widely expressed.