(5E)-tetradecenoyl-CoA + oxidized [electron-transfer flavoprotein] + H(+) <=> (2E,5E)-tetradecadienoyl-CoA + reduced [electron-transfer flavoprotein]
(5e)-tetradecenoyl-coa + oxidized [electron-transfer flavoprotein] + h(+) <=> (2e,5e)-tetradecadienoyl-coa + reduced [electron-transfer flavoprotein]