Predicted to enable kinesin binding activity. Predicted to be involved in nuclear membrane organization and protein localization to nucleus. Located in cytosol and nuclear envelope. Is expressed in gonad; gut; muscle; and nervous system. Human ortholog(s) of this gene implicated in arthrogryposis multiplex congenita-5 and torsion dystonia 1. Orthologous to several human genes including TOR1B (torsin family 1 member B).