Predicted to contribute to phosphatidylinositol N-acetylglucosaminyltransferase activity. Predicted to be involved in GPI anchor biosynthetic process. Predicted to be located in endoplasmic reticulum membrane and plasma membrane. Predicted to be part of glycosylphosphatidylinositol-N-acetylglucosaminyltransferase (GPI-GnT) complex. Orthologous to human PIGY (phosphatidylinositol glycan anchor biosynthesis class Y). [provided by Alliance of Genome Resources, Apr 2022]