obsolete lipoyl synthase activity (acting on glycine-cleavage complex H protein (obsolete GO:0102552)
OBSOLETE. Catalysis of the reaction: 2 S-adenosyl-L-methionine + a [glycine-cleavage complex H protein] N6-octanoyl-L-lysine + 2 a sulfurated [sulfur carrier] = 2 L-methionine + 2 5'-deoxyadenosine + a [glycine-cleavage complex H protein] N6-lipoyl-L-lysine + 2 an unsulfurated [sulfur carrier].