ent-kaur-16-en-19-oate + 2 reduced [2Fe-2S]-[ferredoxin] + O2 + 2 H(+) <=> ent-7alpha-hydroxykaur-16-en-19-oate + 2 oxidized [2Fe-2S]-[ferredoxin] + H2O
ent-kaur-16-en-19-oate + 2 reduced [2fe-2s]-[ferredoxin] + o2 + 2 h(+) <=> ent-7alpha-hydroxykaur-16-en-19-oate + 2 oxidized [2fe-2s]-[ferredoxin] + h2o