pyruvate secondary active transmembrane transporter activity Enables the transfer of pyruvate 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. Secondary active transporters include symporters and antiporters. pyruvate carrier activity GO:0005477 molecular_function secondary active monocarboxylate transmembrane transporter activity pyruvate transmembrane transporter activity