Predicted to enable ammonium transmembrane transporter activity; ankyrin binding activity; and leak channel activity. Predicted to be involved in ammonium transmembrane transport; carbon dioxide transport; and cellular ion homeostasis. Predicted to act upstream of or within erythrocyte development and multicellular organismal iron ion homeostasis. Predicted to be located in plasma membrane. Predicted to be integral component of plasma membrane. Human ortholog(s) of this gene implicated in Rh deficiency syndrome; hemolytic anemia; and overhydrated hereditary stomatocytosis. Orthologous to human RHAG (Rh associated glycoprotein). [provided by Alliance of Genome Resources, Apr 2022]