Ferredoxin component of the toluene-4-monooxygenase multicomponent enzyme system which catalyzes the O2- and NADH-dependent hydroxylation of toluene to form p-cresol (PubMed:1885512, PubMed:15240250). Functions as an intermediate electron transfer protein (PubMed:15240250). Binds 1 [2Fe-2S] cluster. Xenobiotic degradation; toluene degradation. Homodimer (PubMed:1885512). The alkene monooxygenase multicomponent enzyme system is composed of an electron transfer component and a monooxygenase component interacting with the effector protein TmoD (PubMed:25248368). The electron transfer component is composed of a ferredoxin reductase (TmoF) and a ferredoxin (TmoC), and the monooxygenase component is formed by a heterohexamer (dimer of heterotrimers) of two alpha subunits (TmoA), two beta subunits (TmoE) and two gamma subunits (TmoB) (PubMed:25248368). Cells lacking this gene show a complete loss of toluene-4-monooxygenase activity. Belongs to the bacterial ring-hydroxylating dioxygenase ferredoxin component family.