6-pyruvoyltetrahydropterin 2'-reductase activity
6-pyruvoyltetrahydropterin 2'-reductase activity
6-lactoyl-5,6,7,8-tetrahydropterin:NADP+ 2'-oxidoreductase activity
6-lactoyl-5,6,7,8-tetrahydropterin:nadp+ 2'-oxidoreductase activity