We have a license for it but it doesn't do any good if I can't use it.
Data Reviewer is a separate install you have to do and then you will see it under your Geoprocessing tools where you can enable it.
You (or your Esri admins) will find it at My.Esri.com under My Organizations > Downloads > ArcGIS for Desktop (10.4.1?) Pull it down and install it to your ArcMap PC
Retrieving data ...