Predicted to enable protein-folding chaperone binding activity and unfolded protein binding activity. Predicted to be involved in chaperone cofactor-dependent protein refolding. Predicted to be active in cytosol. Is expressed in adult head. Human ortholog(s) of this gene implicated in congenital myopathy 21. Orthologous to several human genes including DNAJB5 (DnaJ heat shock protein family (Hsp40) member B5).