Plays role in seed and fruit development. Functions probably in association with CYP78A9 in the regulation of seed growth. Acts maternally to promote seed growth. Expressed in leaves, sepals, petals, stamens, carpels and developing ovules. Reduced seed size. The gain of function mutants eod3-1D (T-DNA tagging) show increased size of leaves, flowers and seeds, but defects in reproductive development. Belongs to the cytochrome P450 family.