(6Z,9Z,12Z)-octadecatrienoyl-CoA + malonyl-CoA + H(+) <=> (8Z,11Z,14Z)-3-oxoeicosatrienoyl-CoA + CO2 + CoA
(6z,9z,12z)-octadecatrienoyl-coa + malonyl-coa + h(+) <=> (8z,11z,14z)-3-oxoeicosatrienoyl-coa + co2 + coa
(6Z,9Z,12Z)-octadecatrienoyl-CoA + malonyl-CoA + H(+) <=> (8Z,11Z,14Z)-3-oxoeicosatrienoyl-CoA + CO2 + CoA
(6z,9z,12z)-octadecatrienoyl-coa + malonyl-coa + h(+) <=> (8z,11z,14z)-3-oxoeicosatrienoyl-coa + co2 + coa