Predicted to enable identical protein binding activity; ubiquitin protein ligase activity; and ubiquitin-like protein conjugating enzyme binding activity. Predicted to be involved in cellular protein metabolic process. Predicted to act upstream of or within several processes, including negative regulation of autophagy; protein destabilization; and regulation of autophagosome assembly. Predicted to be located in endoplasmic reticulum and membrane. Orthologous to human RNF5 (ring finger protein 5). [provided by Alliance of Genome Resources, Apr 2022]