Predicted to enable endopeptidase activity and structural molecule activity. Acts upstream of or within meiosis I. Part of proteasome regulatory particle. Is expressed in diencephalon lateral wall ventricular layer; medulla oblongata alar plate ventricular layer; rest of cerebellum ventricular layer; telencephalon ventricular layer; and trunk mesenchyme. Orthologous to human PSMD13 (proteasome 26S subunit, non-ATPase 13). [provided by Alliance of Genome Resources, Apr 2022]