Predicted to enable peptide-O-fucosyltransferase activity. Predicted to be involved in protein O-linked fucosylation and regulation of Notch signaling pathway. Predicted to act upstream of or within several processes, including Notch signaling pathway; circulatory system development; and somitogenesis. Located in endoplasmic reticulum. Human ortholog(s) of this gene implicated in Dowling-Degos disease. Orthologous to human POFUT1 (protein O-fucosyltransferase 1). [provided by Alliance of Genome Resources, Apr 2022]