Yes, I'm sure MM-17 has an auto-tune feature. It should be in the Elastic Audio suite. However, you should know it does not work in "real time" (as you're recording) - it only works on audio files.
Also, it is designed to tune your vocals in a more natural manner. If you're looking to create the T-Pain/Cher effect, you may be disappointed. If it is possible, I haven't been able to produce it to that extreme.