Predicted to enable K48-linked polyubiquitin modification-dependent protein binding activity and ubiquitin binding activity. Predicted to be involved in proteasome-mediated ubiquitin-dependent protein catabolic process; protein targeting to ER; and regulation of insulin-like growth factor receptor signaling pathway. Predicted to act upstream of or within SRP-dependent cotranslational protein targeting to membrane, translocation. Predicted to be anchored component of membrane. Predicted to be part of proteasome complex. Predicted to be active in endoplasmic reticulum. Orthologous to human ZFAND2B (zinc finger AN1-type containing 2B). [provided by Alliance of Genome Resources, Apr 2022]