Enables ferrous iron transmembrane transporter activity. Predicted to be involved in iron import into the mitochondrion. Predicted to act upstream of or within ion transport and iron ion homeostasis. Located in mitochondrion. Is expressed in several structures, including genitourinary system; gut; immune system; liver; and lung. Orthologous to human SLC25A28 (solute carrier family 25 member 28). [provided by Alliance of Genome Resources, Apr 2022]