Predicted to be involved in late endosome to vacuole transport via multivesicular body sorting pathway and vesicle budding from membrane. Predicted to act upstream of or within protein transport and vacuolar transport. Predicted to be located in cytosol and endosome membrane. Predicted to be active in multivesicular body. Is expressed in peripheral olfactory organ; solid lens vesicle; and ventral mesoderm. Orthologous to human CHMP5 (charged multivesicular body protein 5).