(9Z)-hexadecenoyl-CoA + oxidized [electron-transfer flavoprotein] + H(+) <=> (2E,9Z)-hexadecadienoyl-CoA + reduced [electron-transfer flavoprotein]
(9z)-hexadecenoyl-coa + oxidized [electron-transfer flavoprotein] + h(+) <=> (2e,9z)-hexadecadienoyl-coa + reduced [electron-transfer flavoprotein]