Predicted to enable several functions, including enzyme binding activity; polyubiquitin modification-dependent protein binding activity; and proteasome regulatory particle binding activity. Predicted to be involved in negative regulation of cellular protein metabolic process. Predicted to be located in several cellular components, including dendrite; neuronal cell body; and nucleoplasm. Predicted to be part of VCP-NPL4-UFD1 AAA ATPase complex. Is expressed in pancreas epithelium. Orthologous to human UBXN1 (UBX domain protein 1). [provided by Alliance of Genome Resources, Apr 2022]