Part of the ABC transporter complex FetAB, which is probably involved in iron export and enhances resistance to H(2)O(2)-mediated oxidative stress. Probably responsible for the translocation of the substrate across the membrane. The complex is composed of two ATP-binding proteins (FetA) and two transmembrane proteins (FetB). Mutant exhibits increased sensitivity to H(2)O(2) stress. Belongs to the UPF0014 family. Extended N-terminus.