6-lactoyl-5,6,7,8-tetrahydropterin + NADP(+) = 6-pyruvoyl-5,6,7,8-tetrahydropterin + NADPH + H(+)
6-lactoyl-5,6,7,8-tetrahydropterin + nadp(+) = 6-pyruvoyl-5,6,7,8-tetrahydropterin + nadph + h(+)
"6-pyruvoyltetrahydropterin 2'-reductase"
"6-pyruvoyltetrahydropterin 2'-reductase"