Predicted to enable identical protein binding activity; phospholipid binding activity; and ubiquitin-specific protease binding activity. Predicted to be involved in several processes, including endosome to lysosome transport; late endosome to vacuole transport; and regulation of endosome size. Predicted to act upstream of or within cell division. Predicted to be located in endosome; midbody; and plasma membrane. Predicted to be part of ESCRT III complex. Predicted to be active in multivesicular body. Is expressed in brain; genitourinary system; and neural retinal epithelium. Orthologous to several human genes including RNF103-CHMP3 (RNF103-CHMP3 readthrough). [provided by Alliance of Genome Resources, Apr 2022]