DD 149 is a request to correct a record that is in error or unjust. Re-enlistment would depend on what information was in question and whether it was changed.
A DD149 is used for a correction in your military records. Depends on what was corrected. See Army Career Counselor asap, must be done in specific time frame, check qualifications.
You can reenlist post dd form 149 if it results in a better discharge rating. If you were separated with anything that looks negative on your record and the dd form 149 made an improvement to that discharge it will help you reenlist into any service.
Since a dd form 149 is a submission for request of correction in your file it would depend on the reasons of the request to determine if you can re-enlist.
This form is used to make a correction in your Military record. There are many factors that determine re-enslistment. Contact your local recruiter or JAG for further guidance.