. "Catalysis of the reaction: glycine + H(+) + succinyl-CoA = 5-aminolevulinate + CO(2) + CoA." . . "5-aminolevulinate synthase activity" . "5-aminolevulinate synthetase activity" . "5-aminolevulinic acid synthase activity" . "5-aminolevulinic acid synthetase activity" . "ALA synthase activity" . "ALA synthetase activity" . "ALAS activity" . "alpha-aminolevulinic acid synthase activity" . "aminolevulinate synthase activity" . "aminolevulinate synthetase activity" . "aminolevulinic acid synthase activity" . "aminolevulinic acid synthetase activity" . "aminolevulinic synthetase activity" . "delta-ALA synthetase activity" . "delta-aminolevulinate synthase activity" . "delta-aminolevulinate synthetase activity" . "delta-aminolevulinic acid synthase activity" . "delta-aminolevulinic acid synthetase activity" . "delta-aminolevulinic synthetase activity" . "succinyl-CoA:glycine C-succinyltransferase (decarboxylating)" . . .