Predicted to enable protein phosphatase 1 binding activity and ubiquitin protein ligase activity. Involved in negative regulation of JNK cascade; negative regulation of apoptotic process; and positive regulation of proteasomal ubiquitin-dependent protein catabolic process. Predicted to be located in nucleus. Predicted to be active in nucleoplasm. Orthologous to human SH3RF2 (SH3 domain containing ring finger 2). [provided by Alliance of Genome Resources, Apr 2022]