Predicted to enable thiol-dependent deubiquitinase and ubiquitin binding activity. Predicted to be involved in negative regulation of nitrogen compound metabolic process and protein deubiquitination. Predicted to act upstream of or within proteolysis. Predicted to be active in nucleus. Orthologous to human OTUB2 (OTU deubiquitinase, ubiquitin aldehyde binding 2). [provided by Alliance of Genome Resources, Apr 2022]