Yes, that file should be owned by the user who's home directory it is in
- in your case, you - not root. I can't find any information on how it
becomes owned by root, but it seems to be a reasonably common problem.

You should also check the group it's in, which should also be you,
although any change here should have no impact on operation as the
permissions should be -rw------- (ie you have read/write permissions
while the group and global permissions are no access at all).