Predicted to enable peptidase activity. Predicted to be involved in proteasomal protein catabolic process. 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 PSMB1 (proteasome 20S subunit beta 1). [provided by Alliance of Genome Resources, Apr 2022]