Lipoyl amidotransferase (EC 2.3.1.200, LipL (gene)) is an enzyme with systematic name (glycine cleavage system H)-N⁶-lipoyl-L-lysine:(lipoyl-carrier protein)-N⁶-L-lysine lipoyltransferase.^[1] This enzyme catalyses the following chemical reaction

[glycine cleavage system H]-N⁶-lipoyl-L-lysine + [lipoyl-carrier protein] ${\displaystyle \rightleftharpoons }$ glycine cleavage system H + [lipoyl-carrier protein]-N⁶-lipoyl-L-lysine

In the bacterium Listeria monocytogenes the enzyme takes part in a pathway for scavenging of lipoic acid.