Enables ubiquitin protein ligase binding activity. Involved in several processes, including cellular response to metal ion; regulation of apoptotic process; and regulation of vacuole organization. Located in cytoplasm; dendrite; and nucleus. Colocalizes with trans-Golgi network. Used to study brain ischemia and middle cerebral artery infarction. Biomarker of several diseases, including Barrett's esophagus; acute necrotizing pancreatitis; artery disease (multiple); brain disease (multiple); and neuropathy (multiple). Human ortholog(s) of this gene implicated in Machado-Joseph disease. Orthologous to human BECN1 (beclin 1). [provided by Alliance of Genome Resources, Apr 2022]