Predicted to enable ubiquitin-protein transferase activity. Predicted to be involved in protein ubiquitination. Predicted to act upstream of or within endocytosis. Predicted to be located in endosome and lysosome. Is expressed in several structures, including alimentary system; brain; eye; genitourinary system; and integumental system. Orthologous to human MARCHF3 (membrane associated ring-CH-type finger 3). [provided by Alliance of Genome Resources, Apr 2022]