Enables protein N-acetylglucosaminyltransferase activity. Involved in protein O-linked glycosylation. Predicted to be located in endoplasmic reticulum. Predicted to be active in endoplasmic reticulum lumen. Is expressed in several structures, including blood vessel; central nervous system; limb; lung; and tail unsegmented mesenchyme. Human ortholog(s) of this gene implicated in Adams-Oliver syndrome. Orthologous to human EOGT (EGF domain specific O-linked N-acetylglucosamine transferase). [provided by Alliance of Genome Resources, Apr 2022]