Predicted to enable magnesium ion transmembrane transporter activity. Predicted to be involved in cognition; magnesium ion transport; and protein N-linked glycosylation via asparagine. Predicted to be located in endoplasmic reticulum. Predicted to be part of oligosaccharyltransferase complex. Human ortholog(s) of this gene implicated in X-linked immunodeficiency with magnesium defect, Epstein-Barr virus infection, and neoplasia; congenital disorder of glycosylation Icc; and non-syndromic X-linked intellectual disability. Orthologous to human MAGT1 (magnesium transporter 1). [provided by Alliance of Genome Resources, Apr 2022]