Acts as a non-catalytic accessory component of a dynein complex. Part of a complex with bicd-1 and egal-1, which is recruited to the nuclear envelope by unc-83, where in turn, it recruits dynein to the nuclear surface and regulates nuclear migrations in hypodermal precursor cells. Probably within a dynein motor complex, plays a role in the cell fate specification of the germline and oogenesis. In particular, it inhibits germ cell proliferation. Regulates the function and localization of the RNA-binding protein fbf-2 in the germline. Plays a role in mitotic and meiotic processes. Involved in the pairing of homologous chromosomes. Independently of its dynein-mediated functions, plays a role in germ cell apoptosis