GO:0050031:   L-pipecolate oxidase activity
Catalysis of the reaction: L-pipecolate + O(2) = 2,3,4,5-tetrahydropyridine-2-carboxylate + H(2)O(2) + H(+). Delta1-piperideine-6-carboxylate is also known as 2,3,4,5-tetrahydropyridine-2-carboxylate.