Missing circle function in edit mode W menu 2.63x

Use to have a circle command in edit mode under W submenu. It would arrange selected verts into a circle on the view port access. Its gone now. anyone found a work around?

Thanks
Talmore

Awesome! Thanks the to sphere works great!

Just be carefull with it. To Sphere means just that… if the area of your mesh has any vertical displacment at all the to sphere tool will attempt to turn it into a full 3d sphere