Predicted to enable proteasome-activating activity. Predicted to be involved in ERAD pathway; positive regulation of RNA polymerase II transcription preinitiation complex assembly; and proteasome-mediated ubiquitin-dependent protein catabolic process. Predicted to act upstream of or within proteolysis. Predicted to be part of proteasome regulatory particle, base subcomplex. Orthologous to human PSMC6 (proteasome 26S subunit, ATPase 6).