During gonad development, involved in distal tip cell (DTC) migration from the dorsal side of the hermaphrodite body to the midbody which allows for the formation of gonad arms. Role in gonad DTC migration may be in association with integrin related proteins ina-1 and mig-15. Expressed in gonad distal tip cells and gonad sheath cells. Expressed in somatic gonad precursors Z1 and Z4 in the gonad primordium and later in distal tip cells during the larval stages. Embryonic lethal. RNAi-mediated knockdown results in gonad distal tip cell (DTC) migration defects whereby DTCs do not migrate to the midbody of the hermaphrodite and as a consequence this leads to abnormal gonadal arm formation during gonad morphogenesis. RNAi-mediated knockdown specifically in gonad DTCs also result in a DTC migration defect in which DTCs migrate away from the hermaphrodite midbody on the dorsal basement membrane. RNAi-mediated knockdown in a unc-6 mutant background results in failed gonad DTC migration to the midbody of the hermaphrodite. RNAi-mediated knockdown with ina-1, mig-15 or talin in an rrf-3 mutant background results in enhanced gonad DTC migration.