arcpy - Correct SQL expression for SelectbyAttribute Tool

I'm trying to apply the sql expression described here https://geonet.esri.com/thread/76028, that involves querying out odd values in a field. The specific sql expression is Round(NumberField / 2, 0) <> NumberField / 2.

I've written this in python:

import arcpy

plantFile = r"U:\Users\K\Plants.shp"
field = "UID"

expression = Round("UID" / 2, 0) <> "UID" / 2
arcpy.SelectLayerByAttribute_management(plantFile, "NEW_SELECTION", expression)

and it returns this error: NameError: name 'Round' is not defined

The expression works when applied in ArcGIS, but not in arcpy. Any hints?