Can Unfailing Endurance be used as a prerequisite to enter a prestige class?

Unfailing Endurance (Defenders of the Faith: A Guidebook to Clerics and Paladins) reads, in part:

[…] The benefits include: Endurance: This feat confers a +4 bonus on any check made for performing a physical action that extends over a period of time (running, swimming, holding breath, and so on). […]

Can it be used to satisfy a prerequisite for a prestige class?