Catalyzes the reduction of fatty acyl-CoA to fatty alcohols (PubMed:19062129, PubMed:20571114). Catalyzes specifically the formation of C18:0 and C22:0 fatty alcohols. Provides the fatty alcohols required for synthesis of suberin in roots, seed coat and wound-induced leaf tissue (PubMed:20571114). Provides the fatty alcohols required for synthesis of alkyl hydroxycinnamates in root waxes (PubMed:22797656). a long-chain fatty acyl-CoA + 2 H(+) + 2 NADPH = a long-chain primary fatty alcohol + CoA + 2 NADP(+) Expressed in the endodermal cell layer surrounding the central vasculature in roots. Expressed in the hilum region of seeds. Expressed in lateral root tips, cotyledons, the shoot apex, young leaves, petals, stamen filaments, and receptacle of siliques. Induced by wounding and salt stress. Belongs to the fatty acyl-CoA reductase family.