Predicted to enable identical protein binding activity; ubiquitin protein ligase activity; and ubiquitin-like protein conjugating enzyme binding activity. Acts upstream of or within several processes, including negative regulation of autophagy; protein destabilization; and regulation of autophagosome assembly. Located in membrane. Is expressed in dorsal root ganglion; limb; neural tube; testis; and urinary system. Orthologous to human RNF5 (ring finger protein 5). [provided by Alliance of Genome Resources, Apr 2022]