Enables actin binding activity; enzyme binding activity; and protein C-terminus binding activity. Involved in several processes, including positive regulation of T cell proliferation; response to alkaline pH; and response to carbon dioxide. Located in several cellular components, including Z disc; basolateral plasma membrane; and intercalated disc. Biomarker of iron deficiency anemia; metabolic acidosis; and renal tubular acidosis. Human ortholog(s) of this gene implicated in congenital hemolytic anemia; hereditary spherocytosis; hereditary spherocytosis type 4; malaria; and renal tubular acidosis. Orthologous to human SLC4A1 (solute carrier family 4 member 1 (Diego blood group)). [provided by Alliance of Genome Resources, Apr 2022]