Use the default Basic Search to find the journal you are checking. Type in the name of the journal in double quotation marks.
In the table of results, if the “Refereed” column for the journal includes an icon of a referee’s shirt, then the journal is peer-reviewed.
If you go to a journal website, information on peer-review will usually be included in a section on information for authors or publication policies and procedures. A good way to find the website for a journal is to check the journal record in Ulrichsweb!!