Salesforce trigger for Convert Lead Owner Queue to Logged in User !!

Salesforce trigger  for Convert Lead Owner Queue to Logged in User

trigger leadConvertToLoggedInUser on Lead (before update) {
   User u = [select Id, Name from User where Id =: UserInfo.getUserId()];

   for(Lead Ld : Trigger.New){  
           String leadOwner = Ld.OwnerId;
           if(leadOwner.startsWith('00G')){
               Ld.OwnerId = u.Id;
           }
   }

}