Predicted to enable identical protein binding activity. Involved in meiotic spindle assembly; oocyte maturation; and polar body extrusion after meiotic divisions. Acts upstream of or within several processes, including lysosome organization; regulation of actin nucleation; and regulation of vesicle size. Located in endosome. Part of WASH complex. Is expressed in foregut; male reproductive system; nervous system; sensory organ; and vibrissa. Human ortholog(s) of this gene implicated in Ritscher-Schinzel syndrome 1 and hereditary spastic paraplegia 8. Orthologous to human WASHC5 (WASH complex subunit 5). [provided by Alliance of Genome Resources, Apr 2022]