Predicted to enable co-receptor binding activity and transferrin receptor activity. Acts upstream of or within iron ion homeostasis. Part of HFE-transferrin receptor complex. Is expressed in liver lobe; mesonephros; and urinary system. Used to study hemochromatosis type 3. Human ortholog(s) of this gene implicated in hemochromatosis and hemochromatosis type 3. Orthologous to human TFR2 (transferrin receptor 2). [provided by Alliance of Genome Resources, Apr 2022]