Predicted to enable nucleotidyltransferase activity. Predicted to be involved in biosynthetic process. Predicted to be active in cytoplasm. Is expressed in several structures, including adrenal gland; alimentary system; central nervous system; eye; and gonad. Human ortholog(s) of this gene implicated in alacrima, achalasia, and impaired intellectual development syndrome. Orthologous to human GMPPA (GDP-mannose pyrophosphorylase A). [provided by Alliance of Genome Resources, Apr 2022]