1,3,6,8-tetrahydroxynaphthalene monooxygenase (quinone-forming) activity
Catalysis of the reaction: naphthalene-1,3,6,8-tetrol + O2 = flaviolin-2-olate + H2O + H+.
GO:0016703
oxidoreductase activity, acting on single donors with incorporation of molecular oxygen, incorporation of one atom of oxygen (internal monooxygenases or internal mixed function oxidases)
is_a