4.4.1.20 (7E,9E,11Z,14Z)-(5S,6S)-5,6-epoxyicosa-7,9,11,14-tetraenoate:glutathione leukotriene-transferase (epoxide-ring-opening), EC 2.5.1.37, leukotriene A4:glutathione S-leukotrienyltransferase, leukotriene C4 synthase, leukotriene C4 synthetase, LT C4 synthase, LTC4 synthase, LTC4 synthetase, LTC4S, LTCS, synthase, leukotriene C4