Ferric chelate reductase involved in iron reduction in roots (By similarity). May participate in the transport of electrons to a Fe(3+) ion via FAD and heme intermediates. 2 a Fe(II)-siderophore + H(+) + NAD(+) = 2 a Fe(III)-siderophore + NADH Expressed in siliques. Detected in roots. Belongs to the ferric reductase (FRE) family.