Predicted to enable CP2 mannose-ethanolamine phosphotransferase activity. Predicted to act upstream of or within GPI anchor biosynthetic process. Predicted to be located in endoplasmic reticulum. Human ortholog(s) of this gene implicated in autosomal recessive non-syndromic intellectual disability. Orthologous to human PIGG (phosphatidylinositol glycan anchor biosynthesis class G). [provided by Alliance of Genome Resources, Apr 2022]