obsolete 4alpha-formyl-stigmasta-7,24(241)-dien-3beta-ol-methyl oxidase activity (obsolete GO:0102181)
OBSOLETE. Catalysis of the reaction: 4alpha-formyl-stigmasta-7,24(241)-dien-3beta-ol + NADH + O2 = 4alpha-carboxy-stigmasta-7,24(241)-dien-3beta-ol + NAD + H2O.