Involved in protein ufmylation and response to endoplasmic reticulum stress. Located in endoplasmic reticulum and nucleus. Is expressed in embryo and pancreas epithelium. Human ortholog(s) of this gene implicated in hypomyelinating leukodystrophy 14. Orthologous to human UFM1 (ubiquitin fold modifier 1). [provided by Alliance of Genome Resources, Apr 2022]