This protein seems to be a 2Fe-2S ferredoxin. Aromatic compound metabolism; benzene degradation; catechol from benzene: step 1/2. This dioxygenase system consists of four proteins: the two subunits of the hydroxylase component (BnzA and BnzB), a ferredoxin (BnzC) and a ferredoxin reductase (BnzD). Belongs to the bacterial ring-hydroxylating dioxygenase ferredoxin component family.