Acts upstream of or within several processes, including endoplasmic reticulum unfolded protein response; positive regulation of organ growth; and positive regulation of peptide hormone secretion. Predicted to be located in cytoplasmic microtubule. Is expressed in several structures, including jaw and orbito-sphenoid. Orthologous to human SERP1 (stress associated endoplasmic reticulum protein 1). [provided by Alliance of Genome Resources, Apr 2022]