Part of an ABC transporter complex involved in carbohydrate import. Could be involved in ribose, galactose and/or methyl galactoside import. Responsible for energy coupling to the transport system. ATP + D-ribose(out) + H2O = ADP + D-ribose(in) + H(+) + phosphate ATP + D-galactose(out) + H2O = ADP + D-galactose(in) + H(+) + phosphate Belongs to the ABC transporter superfamily. Carbohydrate importer 2 (CUT2) (TC 3.A.1.2) family.