Yes. It targets the upper back more than a regular deadlift. The ROM is also larger, so it should affect the rest of the muscles a little more as well.
Hope that helps.
Also, random technique tips for Snatch Grip Deadlift: Whenever I have done them, the grip is too wide for me to use an over-under grip. I use double overhand and then use straps. For me, grip has never been an issue, so using straps for the limited time I was doing Snatch Grip deadlift wasn't a big deal. Use that and draw your own conclusions.
ive now started deadlifting twice a week, one heavy day, one day snatch grip double overhand for 6 sets of 3, and deadlifts improving well, I do less assistance work and more different movements of the powerlift working good
Be careful with them though. We've had some people do them for 6 weeks at a time and it gave them short term back issues. Make sure that your form is tight. It may be wise to rotate them for 3 weeks at a time. Just my 2 cents.