trans,octa-cis-decaprenylphospho-beta-D-arabinofuranose + NAD(+) => trans,octa-cis-decaprenylphospho-beta-D-erythro-pentofuranosid-2-ulose + NADH + H(+)
trans,octa-cis-decaprenylphospho-beta-d-arabinofuranose + nad(+) => trans,octa-cis-decaprenylphospho-beta-d-erythro-pentofuranosid-2-ulose + nadh + h(+)