Can a CAP Form 5 flight evaluation be used as the flight portion of a flight review?
A flight review consists of both a ground portion and a flight portion. You just need a CFI to sign off on the ground training for the flight review.
Alternatively, you could sign up for the FAA Safety Team WINGS program. You get three Flight Activity credits for the above mentioned CAP evaluation. You can earn another three Knowledge Activity credits a number of different ways of your choice. With the three Flight Activity credits and three Knowledge Activity credits, you will complete one phase of the FAASTeam WINGS program. Completing a phase counts as a flight review