LDH-C4 is specific to mature testes and spermtozoa of bird and mammal.It is related to metabolic processes that provide energy for motility and survival of spermtozoa.LDH-C4 is an autoantigen.

摘精特异性乳酸脱氢酶特异地存在鸟类和哺乳类动物的成熟睾丸和精，精的运动和存活提供能量。