Probable transporter of a GTP-driven Fe(2+) uptake system. Cells do not transport Fe(2+). Cells are avirulent and therefore unable to cause lesions in mice. In the N-terminal section; belongs to the FeoA family. In the C-terminal section; belongs to the TRAFAC class TrmE-Era-EngA-EngB-Septin-like GTPase superfamily. FeoB GTPase (TC 9.A.8) family.