The amount of a NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5 when measured in blood. The trait is level of NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5 in blood (OBA_2050773). Also known as: blood NADH dehydrogenase [ubiquinone] 1 alpha subcomplex subunit 5 amount.