Predicted to enable several functions, including p53 binding activity; ubiquitin protein ligase binding activity; and ubiquitin-like protein transferase activity. Predicted to be involved in several processes, including regulation of cell growth; regulation of mitochondrion organization; and regulation of signal transduction. Predicted to be located in axon; neuronal cell body; and peroxisome. Predicted to be integral component of mitochondrial outer membrane. Predicted to be active in mitochondrion. Orthologous to human MUL1 (mitochondrial E3 ubiquitin protein ligase 1). [provided by Alliance of Genome Resources, Apr 2022]