Enables several functions, including cytoskeletal motor activator activity; kinesin binding activity; and protein homodimerization activity. Involved in several processes, including anterograde synaptic vesicle transport; egg-laying behavior; and positive regulation of anterograde synaptic vesicle transport. Located in axon; cytoplasm; and presynaptic active zone dense projection. Expressed in several structures, including excretory gland cell; nervous system; pharyngeal gland cell; rectal gland cell; and
uv1. Is an ortholog of human PPFIA3 (PTPRF interacting protein alpha 3).