CER3/FLP1/WAX2/YRE (ECERIFERUM 3); catalytic. Identical to Protein WAX2 (WAX2) [Arabidopsis Thaliana] (GB:Q8H1Z0;GB:Q94B63;GB:Q9FJN4); similar to CER1 (ECERIFERUM 1) [Arabidopsis thaliana] (TAIR:AT1G02205.2); similar to unnamed protein product [Vitis vinifera] (GB:CAO66581.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO23145.1); similar to unnamed protein product [Vitis vinifera] (GB:CAO23146.1); contains InterPro domain Short-chain dehydrogenase/reductase SDR; (InterPro:IPR002198); contains InterPro domain NAD(P)-binding; (InterPro:IPR016040); contains InterPro domain Sterol desaturase; (InterPro:IPR006088)