The minimum GPA is 2.8 for non residents.
Most UC students have high GPA’s so it would be tough to keep up with them.
Also, there is a required entry level writing requirement. You may not have met that requirement based on your current writing, sorry. http://admission.universityofcalifornia.edu/counselors/transfer/minimum-requirements/index.html
You can try an appeal but the UCs stick to that GPA requirement.