Simple RAW Thread for 3.5: Score and Nine

[Vaern]

Q 205
If a cleric has an ability that consumes uses of turn/rebuke undead attempts as well as a domain that grants the ability to turn/rebuke some other sort of creature, can the cleric use the secondary turn uses to activate that ability?
For example, could a cleric with the fire domain use his ability to turn water creatures in order to fuel the Sacred Healing feat?