Vim/gVim supports Perl in several layers. The basic one comes "out of the box" and is an excellent (imo) syntax highlighter. Usually that's enough. It will also identify any file that has a shebang call with /perl. (although this feature may be lacking)

Higher layer of working with Vim/Perl is to modify Vim configuration files for making the editor even more Perl-friendly.

The highest level is actually compiling Vim with Perl support and using the Perl API