What exactly does the Blackberry Services App do on my PRIV?

I am an ***** when it comes to technology, and my new PRIV has been a challenge getting used to. Today I get a warning about my data usage, and most of it has been spent on the Blackberry Services App. I KNOW this is probably a very stupid question, so feel free to explain it as if I were 4 years old. Actually, a 4 year old would probably understand this more than I do. What does the Blackberry Services App do? Just wondering if I disabled it, what function would I lose? Thanks!!

It provides the backbone for the entire BlackBerry Android app suite.