Enables electron transfer activity; enzyme binding activity; and iron ion binding activity. Contributes to NADPH-adrenodoxin reductase activity and cholesterol monooxygenase (side-chain-cleaving) activity. Involved in several processes, including NADPH oxidation; cellular response to epinephrine stimulus; and cellular response to leptin stimulus. Located in mitochondrial crista and mitochondrial matrix. Biomarker of pancreatitis. Orthologous to human FDX1 (ferredoxin 1). [provided by Alliance of Genome Resources, Apr 2022]