Enables signaling receptor binding activity and unfolded protein binding activity. Acts upstream of or within mRNA modification and negative regulation of neurogenesis. Located in cytoplasm; extracellular space; and nucleus. Is expressed in embryo. Human ortholog(s) of this gene implicated in polycystic kidney disease. Orthologous to human DNAJB11 (DnaJ heat shock protein family (Hsp40) member B11). [provided by Alliance of Genome Resources, Apr 2022]