Catalysis of the transfer of cystine from one side of a membrane to the other, up its concentration gradient. The transporter binds the solute and undergoes a series of conformational changes. Transport works equally well in either direction and is driven by a chemiosmotic source of energy. Chemiosmotic sources of energy include uniport, symport or antiport. (Gene Ontology, GO_0015328)
1 genes performing the cystine secondary active transmembrane transporter activity molecular function from the curated GO Molecular Function Annotations dataset.
