it said that carlisle has compasion, esme has mothership, rosalie has beauty and emmett has strenght, but not any of special powers like reading minds, seeing future, control emotions or being a shield :D
No she doesn't have any gift. She's ungifted just as Emmett,Esme and Carlisle (and other vampires). She brought from her "past life" her tenacity only...LOL :D
Emmett his force (strength), Esme her love anf mothership, and Carlisle his compassion. Just extra information :p
As I said, I do not remember what her power is nor do I know what page it is on. I would strongly advise you to read Twilight if you not already done so, and if you have, and still don't know what it is then, consider re-reading the book.
her gift is her amazing beauty and tenacity.. but it's not a special power like edward's or Alice's.. it's just qualities that intensified after her change to a vampire.