Predicted to enable peptidase activity. Involved in response to organic cyclic compound and response to organonitrogen compound. Predicted to be located in nucleoplasm. Predicted to be part of proteasome core complex, beta-subunit complex. Predicted to be active in nucleus. Orthologous to human PSMB2 (proteasome 20S subunit beta 2). [provided by Alliance of Genome Resources, Apr 2022]