ID 1.8.4.1 DE glutathione--homocystine transhydrogenase. CA L,L-homocystine + 2 glutathione = 2 L-homocysteine + CA glutathione disulfide. CC -!- The reactions catalyzed by this enzyme and by others in this subclass CC may be similar to those catalyzed by EC 2.5.1.18. //