Predicted to enable O-fucosylpeptide 3-beta-N-acetylglucosaminyltransferase activity. Involved in regulation of Notch signaling pathway. Acts upstream of or within positive regulation of Notch signaling pathway and positive regulation of protein binding activity. Predicted to be located in Golgi apparatus and membrane. Predicted to be integral component of Golgi membrane. Is expressed in several structures, including central nervous system; genitourinary system; limb; retina; and small intestine. Orthologous to human RFNG (RFNG O-fucosylpeptide 3-beta-N-acetylglucosaminyltransferase). [provided by Alliance of Genome Resources, Apr 2022]