Predicted to enable several functions, including heme binding activity; hemoglobin alpha binding activity; and oxygen carrier activity. Predicted to contribute to haptoglobin binding activity and peroxidase activity. Predicted to be involved in hydrogen peroxide catabolic process. Predicted to be part of haptoglobin-hemoglobin complex and hemoglobin complex. Human ortholog(s) of this gene implicated in delta beta-thalassemia and sickle cell anemia. Orthologous to human HBG1 (hemoglobin subunit gamma 1) and HBG2 (hemoglobin subunit gamma 2). [provided by Alliance of Genome Resources, Apr 2022]