Sharepoint - Is there a way to get current item Id in Edit form

The Item ID is passed via url to the Edit Form. so you cab get it using this : _spGetQueryParam('id') Let me know if this works.

The JSRequest class is a JavaScript object that lives on all SharePoint Pages, and allows us to simply and quickly get query string values using JavaScript.

//First we must call the EnsureSetup method
JSRequest.EnsureSetup(); 

//Get a query string parameter called Id. i.e - "page.aspx?Id=11" will return 11
var itemId = JSRequest.QueryString["ID"];