abieta-7,13-dien-18-al (NAD+) dehydrogenase activity
abieta-7,13-dien-18-al (nad+) dehydrogenase activity
Catalysis of the reaction: abieta-7,13-diene-18-al + H2O + NAD+ = abieta-7,13-diene-18-oate + NADH + H+.