Predicted to enable chaperone binding activity. Predicted to be involved in tail-anchored membrane protein insertion into ER membrane. Predicted to be located in cytosol; membrane; and nucleoplasm. Predicted to be part of BAT3 complex. Is expressed in olfactory cortex ventricular layer; olfactory epithelium; and telencephalon ventricular layer. Orthologous to human UBL4A (ubiquitin like 4A). [provided by Alliance of Genome Resources, Apr 2022]